estes



UNITED ASTATES PATENT OFFICE.

4 WILLIAM A.. ESTES, or vAssALBoR0Uqn,essIGNoIt or TH'ItEn-EIeHTI-Is To1 ANDREW WEBBER ANDHARTwE-LL B. HAsKELL, or CHINA, MAINE.

PIL-ow.

sPEcImcATroNifereing' part efLetters Patent No. 252,291, dated January 1o, 1882.

I Application filed October 13, 1881. (No model.)

To all whom -it may concern: x

Be it known that I, WILLIAM A. EsTns, a citizen of the United States, residing at Vassalborough, in the county of Kennebec and State ot' Maine, have invented certain new and use` ful Improvements in Plows, of which the fol:

lowing is a sprcilication, reference being had therein to the' accompanying drawings.

This invention relates to improvements in that class ofplows in which `vertical friction-rolll ers are attached to the mold-board and landside, and horizontal rollers arranged to support the rear end Aot' the plow and serve to crush the clods while assisting the draft.

The object of the invention 1s to provideimprovedmeansofjournalingthe rollers employed inthe situations above referred to and the in- 'vention consists in the construction of such rollers and in the manner of journaling and arranging the same in connection with the rest of the plow,as hereinaftermorefull y described and claimed.

In the annexed drawings, which fully illusg trate my invention, Figure l is aside view of my improved plow,.showing the outer side of the moldboard. Fig. 2 is a top view. Fig. 3

- is a vertical longitudinal section'. Fig. 4.V is a rear View.' Fig. 5 shows sectional detailviews of the vertical antifriction rollers attached to the mold-board and landside, and Fig. 6 shows la sectional view of the horizontal and adjustable land-rollers.. i

Like letters indicate like parts in the several views.

Heretofore the rollers sometimes employed `in the construction of plows have been formed and arranged in such a manner that the Wear necessarily comes directly upon the journals and bearings, so that in a short time their etciency is seriously impaired.' The journalboxes or recesses for the reception of the journals of these rollers have also been liable to receive and retain dirt, thus adding greatly yto the ordinary friction and obstructing the,

in movable nipples so arranged as to exclude dirt, and at the same time receive and tatie up Wear, such nipples beingreadily replaced,

when required, at but a slight expense.

' In the drawings, A represents the plowbeam, B the mold-board, and C the landside', these parts being constructed,arranged, 4and connected in any convenient. and suitable manner.

The rollers a are preferably hollow, but may be made solid, it' desired. They are .pro' vided' at each endwith beads, on one of which is castor otherwise attached ajournal or arbor, b. As these rollers are arranged in the moldboard and landside in a vertical, or nearly vertical, position, the end carrying the journal 'b ispreferably placed uppermost. In thelower endj of the roller is formed'a recess, cavity, or journal-box, c, which may receive a journal or pivot, d, attached to a bearing, e, formed in the 'lower part of the mold-board or landside.

It will be seen that the journal-box or cavity c formed in the lower end of theA roller, as well as the journal-box cformed in the bear- `ingfin the upper part of the 1nold-board and placed,when required. The journalsof the very tical rollers are provided with nipples gg, which fit loosely within the journal-boxes e c and inclose thejonrnals b d, so as to protect the same on their sides and ends. These nipples also protect the bearings or interior of the boxes c @from the e'ects of the severe strain and. wear 'that'would result if the journals or pivots b d 'wei-e journaled directly in said boxes. The

strain is thus greatly diminished and is expended chieflyupon the movable nipples, which, when worn, may be replaced at but little cost. The rollers a a are journaled in the manner roo l above described in the bearings e f, preferably formed inor attached to' the back ofthe moldboard and landside at their upper and lower parts. These. rollers are also arranged so as to project partially through slots h h, formed in said mold-board and, landside, and` are each placed at the rear side ot' its slot,so that as the plow is moved forward the rollers in revolving backward will come slightlyin contact with' the rear side of their respective slots, thus causing the dirt to be scraped from the rollers on the outside. By this simple means they are always kept clean and prevented from becoming clogged by contact with the soil.

An adjustable roller, a', constructed and journaled in the saine manner as the rollers aa., is arranged in bearings i t" at the rear end ofithe mold board, to which the lower bearing, fi, is attached. The upper bearing, i', of the roller a is attached to a bar or rod, it, .that is adjustably supported in loops m m, secured near the lower` endsof the plow-handles, or,yit' desired, to the upper rear parts of the mold-board and landside. The adjustable rod or har k is Asecured by means ot'athumb-screw,p, engaging y with notches or openings formedin the bar, so that by-loosening the screw the bar may be moved horizontally to the right or left, thus carrying with it Vthe upper part of the roller a and retaining the latter'either in a vertical or inclined position,accordingtotheinclination of the land orot' thefur-row vmade by the plow.

At the rear end of the plow arearranged the horizontal land-rollers D D, which a'reloosely journaled on loose collars, bands, or rings t t,

through which passes a lixed shaft, w, that is secured in the lower ends of the downwardlyprojecting arms E E, which are slotted at their upper ends and adjustably attached to the handles or other parts of the plow by means of suitable bolts or screws passing through said slots. It will be observed that by this construc tion the rollers D D may be readily adjusted to any required height or inclination, and that one of the supporting-arms E may be raised while the other is lowered, thus inclining the rollers according to the nature or incline ofthe land to be plowed. The movable bands or collars t t are placed on the fixed shaftw between it and the horizontal rollers D, so as to take up the wear that would otherwise come directly on the rollers and their shaft'. By employing a fixed shaft for these rollers allwear at the lower ends of the arms E E is avoided. The shaft w is secured in place by suitable nuts at either end, and a washer, s, may be placed ony the shalt between the'rollers for the purpose or holding the bands or collars t t in place.

The many advantages resulting from this manner of a rran ging and journaling the rollers employed in plows and similar cultivators have been but partially referred to above, but will be apparent upon observation. The efficiency ot' the rollers is largely increased at but a ttifling cost,.while, by reason of their greater durability' and the preventionI of wear in parts to which they are applied, a great saving is at- -the purpose of diminishing wear, all the parts being constructed and arranged substantially as specified.

2.' The combination, with the mold-board and landside of aplowhaving bearings ef and slots h, ofthe rollers a. arranged toward the rear sides of said slots, and provided with recesses or journal-boxes c, and the movable nipples g, placed loosely within saidjournal-boxes and surrounding the journals of the rollers, substantially as and for the purpose set forth.

3. The combination, with aplow frame, of the adjustable roller d', having its journals inolosed in nipples g, and provided with a rod or bar, 7c, substantially as described.

In testimony whereof I ax ny signature in presence of two witnesses.

A WM'. A. ESTES.

Witnesses:

PHILIP' MAURo,

A. R. BROWN. 

